package charpter04.Example06;
class Animal{
    private String name;
    private int age;
    public Animal (String name,int age){
        this.name = name;
        this.age = age;
    }
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name = name;
    }
    public int getAge(){
        return age;
    }
    public void setAge(int age){
        this.age = age;
    }
    public String info(){
        return "名称:"+this.getName()+",年龄:"+this.getAge();
    }
}
//定义Dog类继承Animal类
class Dog extends Animal{
    private String color;
    public Dog (String name,int age,String color){
        super(name,age);
    }
    public String getColor(){
        return color;
    }
    public void setColor(String color){
        this.color = color;
    }
    //重写父类的info（）方法
    public String info(){
        return super.info()+"颜色:"+this.getColor();//扩充父类中的方法
    }
}
public class Example06 {
    public static void main(String[] args) {
        Dog dog = new Dog("牧羊犬",3,"黑色");//创建Dog类的实例对象
        System.out.println(dog.info());
    }
}
